<template>
  <div class="p-2">
    <el-row :gutter="20">
      <!-- 树 -->
      <el-col :lg="4" :xs="24" style="">
        <el-card shadow="hover">
          <el-input v-model="lightenName" placeholder="请输入班级" prefix-icon="Search" clearable />
          <el-tree
            class="mt-2"
            ref="lightenTreeRef"
            node-key="id"
            :data="lightenOptions"
            :props="{ label: 'label', children: 'children' }"
            :expand-on-click-node="false"
            :filter-node-method="filterNode"
            highlight-current
            default-expand-all
            @node-click="handleNodeClick"
          />
        </el-card>
      </el-col>
      <el-col :lg="20" :xs="24">
        <transition :enter-active-class="proxy?.animate.searchAnimate.enter" :leave-active-class="proxy?.animate.searchAnimate.leave">
          <div class="search" v-show="showSearch">
            <el-form :model="queryParams" ref="queryFormRef" :inline="true" label-width="68px">
              <el-form-item label="姓名" prop="name">
                <el-input v-model="queryParams.name" placeholder="请输入姓名" clearable style="width: 240px" @keyup.enter="handleQuery" />
              </el-form-item>
              <el-form-item label="学号" prop="studentNumber">
                <el-input v-model="queryParams.studentNumber" placeholder="请输入学号" clearable style="width: 240px" @keyup.enter="handleQuery" />
              </el-form-item>
              <el-form-item>
                <el-button type="primary" icon="Search" @click="handleQuery">搜索</el-button>
                <el-button icon="Refresh" @click="resetQuery">重置</el-button>
              </el-form-item>
            </el-form>
          </div>
        </transition>

        <el-card shadow="never">
          <template #header>
            <el-row :gutter="10" class="mb8">
              <el-col :span="1.5">
                <el-button type="primary" plain icon="Plus" @click="handleAdd" v-hasPermi="['school:student:add']">新增</el-button>
              </el-col>
              <el-col :span="1.5">
                <el-button type="success" plain icon="Edit" :disabled="single" @click="handleUpdate()" v-hasPermi="['school:student:edit']">修改</el-button>
              </el-col>
              <el-col :span="1.5">
                <el-button type="danger" plain icon="Delete" :disabled="multiple" @click="handleDelete()" v-hasPermi="['school:student:remove']">删除</el-button>
              </el-col>
              <el-col :span="1.5">
                <el-button type="warning" plain icon="Download" @click="handleExport" v-hasPermi="['school:student:export']">导出</el-button>
              </el-col>
              <right-toolbar v-model:showSearch="showSearch" @queryTable="getList"></right-toolbar>
            </el-row>
          </template>

          <el-table v-loading="loading" :data="studentList" @selection-change="handleSelectionChange">
            <el-table-column type="selection" width="55" align="center" />
            <!-- <el-table-column label="学生表主键" align="center" prop="id" v-if="true" /> -->
            <!-- <el-table-column label="所属班级ID" align="center" prop="lightenId" />
            <el-table-column label="用户ID" align="center" prop="userId" /> -->
            <el-table-column label="姓名" align="center" prop="name" />
            <el-table-column label="学号" align="center" prop="studentNumber" />
            <el-table-column label="操作" align="center" class-name="small-padding fixed-width">
              <template #default="scope">
                <el-tooltip content="修改" placement="top">
                  <el-button link type="primary" icon="Edit" @click="handleUpdate(scope.row)" v-hasPermi="['school:student:edit']"></el-button>
                </el-tooltip>
                <el-tooltip content="删除" placement="top">
                  <el-button link type="primary" icon="Delete" @click="handleDelete(scope.row)" v-hasPermi="['school:student:remove']"></el-button>
                </el-tooltip>
              </template>
            </el-table-column>
          </el-table>

          <pagination
              v-show="total>0"
              :total="total"
              v-model:page="queryParams.pageNum"
              v-model:limit="queryParams.pageSize"
              @pagination="getList"
          />
        </el-card>
      </el-col>
    </el-row>
    <!-- 添加或修改学生管理对话框 -->
    <el-dialog :title="dialog.title" v-model="dialog.visible" width="500px" append-to-body>
      <el-form ref="studentFormRef" :model="form" :rules="rules" label-width="80px">
        <el-form-item label="所属班级ID" prop="lightenId">
          <el-input v-model="form.lightenId" placeholder="请输入所属班级ID" />
        </el-form-item>
        <el-form-item label="用户ID" prop="userId">
          <el-input v-model="form.userId" placeholder="请输入用户ID" />
        </el-form-item>
        <el-form-item label="姓名" prop="name">
          <el-input v-model="form.name" placeholder="请输入姓名" />
        </el-form-item>
        <el-form-item label="学号" prop="studentNumber">
          <el-input v-model="form.studentNumber" placeholder="请输入学号" />
        </el-form-item>
      </el-form>
      <template #footer>
        <div class="dialog-footer">
          <el-button :loading="buttonLoading" type="primary" @click="submitForm">确 定</el-button>
          <el-button @click="cancel">取 消</el-button>
        </div>
      </template>
    </el-dialog>
  </div>
</template>

<script setup name="Student" lang="ts">
import { listStudent, getStudent, delStudent, addStudent, updateStudent } from '@/api/school/student';
import { lightenTreeSelect } from '@/api/school/lighten';
import { StudentVO, StudentQuery, StudentForm } from '@/api/school/student/types';
import { LightenVO } from '@/api/school/lighten/types';

const { proxy } = getCurrentInstance() as ComponentInternalInstance;

const studentList = ref<StudentVO[]>([]);
const buttonLoading = ref(false);
const loading = ref(true);
const showSearch = ref(true);
const ids = ref<Array<string | number>>([]);
const single = ref(true);
const multiple = ref(true);
const total = ref(0);

const queryFormRef = ref<ElFormInstance>();
const studentFormRef = ref<ElFormInstance>();

const lightenName = ref('');
const lightenTreeRef = ref<ElTreeInstance>();
const lightenOptions = ref<LightenVO[]>([]);

const dialog = reactive<DialogOption>({
  visible: false,
  title: ''
});

const initFormData: StudentForm = {
  id: undefined,
  lightenId: undefined,
  userId: undefined,
  name: undefined,
  studentNumber: undefined,
}
const data = reactive<PageData<StudentForm, StudentQuery>>({
  form: {...initFormData},
  queryParams: {
    pageNum: 1,
    pageSize: 10,
    name: undefined,
    lightenId: undefined,
    studentNumber: undefined,
    params: {
    }
  },
  rules: {
    id: [
      { required: true, message: "学生表主键不能为空", trigger: "blur" }
    ],
    lightenId: [
      { required: true, message: "所属班级ID不能为空", trigger: "blur" }
    ],
    userId: [
      { required: true, message: "用户ID不能为空", trigger: "blur" }
    ],
    name: [
      { required: true, message: "姓名不能为空", trigger: "blur" }
    ],
    studentNumber: [
      { required: true, message: "学号不能为空", trigger: "blur" }
    ],
  }
});

const { queryParams, form, rules } = toRefs(data);

/** 查询学生管理列表 */
const getList = async () => {
  loading.value = true;
  const res = await listStudent(queryParams.value);
  studentList.value = res.rows;
  total.value = res.total;
  loading.value = false;
}

/** 取消按钮 */
const cancel = () => {
  reset();
  dialog.visible = false;
}

/** 表单重置 */
const reset = () => {
  form.value = {...initFormData};
  studentFormRef.value?.resetFields();
}

/** 搜索按钮操作 */
const handleQuery = () => {
  queryParams.value.pageNum = 1;
  getList();
}

/** 重置按钮操作 */
const resetQuery = () => {
  queryFormRef.value?.resetFields();
  lightenTreeRef.value?.setCurrentKey(undefined);
  handleQuery();
}

/** 多选框选中数据 */
const handleSelectionChange = (selection: StudentVO[]) => {
  ids.value = selection.map(item => item.id);
  single.value = selection.length != 1;
  multiple.value = !selection.length;
}

/** 新增按钮操作 */
const handleAdd = () => {
  reset();
  dialog.visible = true;
  dialog.title = "添加学生管理";
}

/** 修改按钮操作 */
const handleUpdate = async (row?: StudentVO) => {
  reset();
  const _id = row?.id || ids.value[0]
  const res = await getStudent(_id);
  Object.assign(form.value, res.data);
  dialog.visible = true;
  dialog.title = "修改学生管理";
}

/** 提交按钮 */
const submitForm = () => {
  studentFormRef.value?.validate(async (valid: boolean) => {
    if (valid) {
      buttonLoading.value = true;
      if (form.value.id) {
        await updateStudent(form.value).finally(() =>  buttonLoading.value = false);
      } else {
        await addStudent(form.value).finally(() =>  buttonLoading.value = false);
      }
      proxy?.$modal.msgSuccess("修改成功");
      dialog.visible = false;
      await getList();
    }
  });
}

/** 删除按钮操作 */
const handleDelete = async (row?: StudentVO) => {
  const _ids = row?.id || ids.value;
  await proxy?.$modal.confirm('是否确认删除学生管理编号为"' + _ids + '"的数据项？').finally(() => loading.value = false);
  await delStudent(_ids);
  proxy?.$modal.msgSuccess("删除成功");
  await getList();
}

/** 导出按钮操作 */
const handleExport = () => {
  proxy?.download('school/student/export', {
    ...queryParams.value
  }, `student_${new Date().getTime()}.xlsx`)
}

/** 查询区域班级统计下拉树结构 */
const getTreeselect = async () => {
  const res = await lightenTreeSelect();
  lightenOptions.value = res.data;
};

/** 通过条件过滤节点  */
const filterNode = (value: string, data: any) => {
  if (!value) return true
  return data.label.indexOf(value) !== -1
}

/** 根据名称筛选部门树 */
watchEffect(
  () => { lightenTreeRef.value?.filter(lightenName.value); },
  {
    flush: 'post' // watchEffect会在DOM挂载或者更新之前就会触发，此属性控制在DOM元素更新后运行
  }
);

/** 节点单击事件 */
const handleNodeClick = (data: LightenVO) => {
  queryParams.value.lightenId = data.id;
  handleQuery()
}

onMounted(() => {
  getTreeselect();
  getList();
});
</script>
